Changjiang Securities·2026-03-04 10:43Investment Rating - The industry investment rating is "Positive" and is maintained [8] Core Insights - As of Q4 2025, the total market value of the top ten holdings in the environmental sector is approximately 7.157 billion yuan, accounting for 0.19% of all disclosed fund products' stock holdings, which is a slight increase of 0.05 percentage points from the previous quarter [2][4] - The A-share environmental sector is currently in a low allocation state, with a standard allocation ratio of 0.94% as of Q4 2025 [4][16] - The leading companies in terms of fund holdings are Huace Testing (1.4 billion yuan), Weiming Environmental (1.37 billion yuan), and Hanlan Environment (970 million yuan) [5][25] Summary by Sections Fund Holdings Overview - The environmental sector's heavy holdings ratio is 0.19% in Q4 2025, up from 0.19% in Q3 2025, with 344 fund products holding shares in 162 environmental companies [4][16] - The number of funds heavily invested in leading companies includes Hanlan Environment (70 funds), Huace Testing (35 funds), and Weiming Environmental (29 funds) [21][25] Changes in Fund Holdings - The top companies with significant increases in fund holdings include Huace Testing (+10.87 billion yuan), Weiming Environmental (+7.36 billion yuan), and Huicheng Environmental (+2.49 billion yuan) [30] - Conversely, companies with notable decreases include Longjing Environmental (-4.37 billion yuan), Shanghai Washba (-4.17 billion yuan), and China Tianying (-3.65 billion yuan) [30] Investment Strategy - The investment strategy focuses on carbon reduction leading to overseas expansion and value reassessment, with an emphasis on the need for the environmental sector to adapt to new policies and market conditions [6][32] - Key opportunities include the overseas expansion of waste incineration, driven by demand in Southeast Asia and Central Asia, and the potential for growth in non-electric green energy and recycling resources [32][37]